translate search window textbox watermarks

Author: maxijabase

UI/Windows/SearchWindow.xaml

@@ -31,7 +31,7 @@
     </ResourceDictionary>
   </controls:MetroWindow.Resources>
 
-  <Grid Name="FindReplaceGrid">
+  <Grid Name="SearchGrid">
     <Grid.RowDefinitions>
       <RowDefinition Height="130"/>
       <RowDefinition/>
@@ -40,8 +40,8 @@
 
     <Grid Grid.Row="0" VerticalAlignment="Center">
       <StackPanel>
-        <TextBox x:Name="FindBox" Margin="10,0,10,5" Height="55" controls:TextBoxHelper.Watermark="Find" VerticalScrollBarVisibility="Visible" TextChanged="SearchBoxTextChanged" KeyDown="SearchBoxKeyUp" />
-        <TextBox x:Name="ReplaceBox" Margin="10,0,10,5" Height="55" controls:TextBoxHelper.Watermark="Replace" VerticalScrollBarVisibility="Visible" KeyDown="ReplaceBoxKeyUp" TextChanged="ReplaceBoxTextChanged" />
+        <TextBox x:Name="FindBox" Margin="10,0,10,5" Height="55" VerticalScrollBarVisibility="Visible" TextChanged="SearchBoxTextChanged" KeyDown="SearchBoxKeyUp" />
+        <TextBox x:Name="ReplaceBox" Margin="10,0,10,5" Height="55" VerticalScrollBarVisibility="Visible" KeyDown="ReplaceBoxKeyUp" TextChanged="ReplaceBoxTextChanged" />
       </StackPanel>
     </Grid>
 

UI/Windows/SearchWindow.xaml.cs

@@ -8,6 +8,7 @@
 using System.Windows.Controls;
 using System.Windows.Input;
 using MahApps.Metro;
+using MahApps.Metro.Controls;
 using SPCode.UI.Components;
 using Xceed.Wpf.AvalonDock.Layout;
 using static SPCode.Interop.TranslationProvider;
@@ -206,7 +207,7 @@ private void ToggleSearchField()
                     }
                 }
                 IsSearchFieldOpen = false;
-                FindReplaceGrid.IsHitTestVisible = false;
+                SearchGrid.IsHitTestVisible = false;
                 if (_editor == null)
                 {
                     return;
@@ -216,7 +217,7 @@ private void ToggleSearchField()
             else
             {
                 IsSearchFieldOpen = true;
-                FindReplaceGrid.IsHitTestVisible = true;
+                SearchGrid.IsHitTestVisible = true;
                 if (_editor == null)
                 {
                     return;
@@ -546,6 +547,9 @@ public void Language_Translate()
             Count_Button.Content = Translate("Count");
             CCBoxText.Text = Translate("CaseSen");
             MLRBoxText.Text = Translate("MultilineRegex");
+
+            TextBoxHelper.SetWatermark(FindBox, Translate("Find"));
+            TextBoxHelper.SetWatermark(ReplaceBox, Translate("Replace"));
         }
 
         private void EvaluateRTL()